1 // Copyright 2004 "Gilles Degottex" 2 3 // This file is part of "Music" 4 5 // "Music" is free software; you can redistribute it and/or modify 6 // it under the terms of the GNU Lesser General Public License as published by 7 // the Free Software Foundation; either version 2.1 of the License, or 8 // (at your option) any later version. 9 // 10 // "Music" is distributed in the hope that it will be useful, 11 // but WITHOUT ANY WARRANTY; without even the implied warranty of 12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 // GNU Lesser General Public License for more details. 14 // 15 // You should have received a copy of the GNU Lesser General Public License 16 // along with this program; if not, write to the Free Software 17 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 18 19 20 #ifndef _TimeAnalysis_h_ 21 #define _TimeAnalysis_h_ 22 23 #include <vector> 24 #include <deque> 25 #include <map> 26 #include <list> 27 #include <complex> 28 using namespace std; 29 #include "Algorithm.h" 30 #include "CumulativeDiff.h" 31 32 namespace Music 33 { 34 //! Seek for the period (relative to sampling rate) 35 double GetAverageWaveLengthFromApproxEnergy(const std::deque<double>& queue, double approx, int n); 36 37 //! Seek for the period (relative to sampling rate) 38 double GetAveragePeriodFromApprox(const std::deque<double>& queue, int approx, int n); 39 40 //! Get a sample of the wave form (relative to sampling rate) 41 void GetWaveSample(const std::deque<double>& queue, size_t wave_length, std::deque<double>& sample); 42 } 43 44 #endif // _TimeAnalysis_h_ 45 46